Belching (Ex)

A belching beheaded gains the ability to spew raw energy
from its mouth, giving it a ranged touch attack that does 1d6 damage of a
specific type (acid, cold, electric, or fire) chosen at the time of the
beheaded's animation

Beheaded are floating skulls or severed heads whose bodies have long
since abandoned them, either in the moment of death or long after.
Reanimated via dark magic, these horrors are usually created as mindless
sentinels for dungeons or lairs. Beheaded silently hover at about
eye-level, often making them the last thing a casual wanderer or
careless villager in an infested area ever sees.